导出step文件合并为整体，方便后续修改

src/core/aluminum_foam_mold.py

@@ -16,7 +16,7 @@ import numpy as np
 from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_MakeFace
 from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox
 from OCC.Core.gp import gp_Pln, gp_Dir, gp_Pnt
-from OCC.Core.TopoDS import TopoDS_Face, topods
+from OCC.Core.TopoDS import TopoDS_Face, TopoDS_Shape, topods
 from OCC.Core.BRepAdaptor import BRepAdaptor_Surface
 from OCC.Core.TopExp import TopExp_Explorer
 from OCC.Core.TopAbs import TopAbs_FACE
@@ -128,7 +128,7 @@ class AluminumFoamMoldGenerator(BaseMoldGenerator):
         else:
             logger.warning(f"未知材料 {material}")
 
-    def generate_mold_cavities(self, product_shape: Any) -> Dict[str, Any]:
+    def generate_mold_cavities(self, product_shape: TopoDS_Shape) -> Dict[str, Any]:
         """
         从产品的3D模型生成型腔和型芯
 
@@ -292,13 +292,13 @@ class AluminumFoamMoldGenerator(BaseMoldGenerator):
 
     # ==================== 核心算法实现 ====================
 
-    def _analyze_product_geometry(self, shape: Any) -> Dict[str, Any]:
+    def _analyze_product_geometry(self, shape: TopoDS_Shape) -> Dict[str, Any]:
         """分析产品几何属性（扩展基类版本，增加法向量统计）"""
         result = super()._analyze_product_geometry(shape)
         result["normal_statistics"] = self._analyze_parting_direction(shape)
         return result
 
-    def _analyze_parting_direction(self, shape: Any) -> Dict[str, float]:
+    def _analyze_parting_direction(self, shape: TopoDS_Shape) -> Dict[str, float]:
         """分析产品法向量分布，按面积加权统计各轴方向强度"""
         stats = {"X": 0.0, "Y": 0.0, "Z": 0.0}
         explorer = TopExp_Explorer(shape, TopAbs_FACE)
@@ -328,11 +328,11 @@ class AluminumFoamMoldGenerator(BaseMoldGenerator):
             for axis, value in stats.items()
         }
 
-    def _split_cavity_core(self, shape: Any, parting_surface: Any) -> Tuple[Any, Any]:
+    def _split_cavity_core(self, shape: TopoDS_Shape, parting_surface: TopoDS_Face) -> Tuple[TopoDS_Shape, TopoDS_Shape]:
         """分离型腔和型芯（铝泡沫使用更大余量）"""
         return super()._split_cavity_core(shape, parting_surface, margin=25)
 
-    def _detect_parting_surfaces(self, shape: Any, analysis: Dict) -> Dict[str, Any]:
+    def _detect_parting_surfaces(self, shape: TopoDS_Shape, analysis: Dict) -> Dict[str, Any]:
         """
         检测分型面（泡沫模具专用）
 
@@ -470,7 +470,7 @@ class AluminumFoamMoldGenerator(BaseMoldGenerator):
 
         except Exception:
             return 50.0
-    def _generate_mold_block(self, cavity: Any, analysis: Dict) -> Any:
+    def _generate_mold_block(self, cavity: TopoDS_Shape, analysis: Dict) -> TopoDS_Shape:
         """生成完整的模具块（包含A/B板结构）"""
         try:
             bbox = analysis["bounding_box"]
@@ -493,7 +493,7 @@ class AluminumFoamMoldGenerator(BaseMoldGenerator):
             logger.error(f"模具块生成失败: {e}")
             return cavity
 
-    def _extract_parting_surface_geometry(self, surface: Any) -> Dict[str, Any]:
+    def _extract_parting_surface_geometry(self, surface: TopoDS_Face) -> Dict[str, Any]:
         """提取分型面几何数据"""
         metadata = self._extract_plane_metadata(surface)
         return {
@@ -504,7 +504,7 @@ class AluminumFoamMoldGenerator(BaseMoldGenerator):
         }
 
     def _create_parting_surface_from_ai(self, ai_result: Dict, analysis: Dict,
-                                        shape: Any = None) -> Dict:
+                                        shape: Optional[TopoDS_Shape] = None) -> Dict:
         """从 AI 结果创建分型面"""
         origin = ai_result.get("origin", [0, 0, 0])
         normal = ai_result.get("normal", [0, 0, 1])